/**
* Copyright (C) 2013-2024 Nanjing Pengyun Network Technology Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/ 

package py.monitor.utils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RegExUtils {
  public static String matchString(String str, String regex) {
    String subStr = new String();
    Pattern p = Pattern.compile(regex);
    Matcher mtc = p.matcher(str);
    if (mtc.find()) {
      subStr = mtc.group();
    } else {
      subStr = "";
    }
    return subStr;
  }
}
